Results for "airflow restriction"

Before highway driving yesterday, my gauge showed 250 PSI on the high side, but every Ford V10 manual says my 2019 Georgetown XL should max at 200 PSI. After completing full refrigerant system service including line replacement, receiver-drier, and expansion valve replacement, followed by proper evacuation and R134a charge to specification (920g), the system operates normally at idle and low RPM conditions.

However, above 2800 RPM during highway driving, the compressor cycles on and off repeatedly. System pressures appear normal during stationary testing. Is this cycling behavior a designed protective feature of the Ford V10 PCM during high load conditions, or does this indicate an underlying issue with head pressure, airflow, or refrigerant charge that requires further diagnosis? …more

Looked everywhere for answers on my Whirlpool residential refrigerator cycling every 30 minutes—my neighbor says it's normal, RV dealer says it's broken, YouTube says something else entirely. The ambient temperature here is around 65°F, and I have both the fridge and freezer set to the 3rd snowflake setting.

I haven't timed it exactly with a stopwatch, but I keep noticing it kicking on again after what feels like a short time. I'm concerned this frequent cycling might be a sign of a problem or could lead to premature failure. I try to keep the vents clean when I can access them. Should I be worried about this 30-minute cycle pattern, or is this within normal range for an RV refrigerator in these conditions? …more

Found that ever since those heavy rains last month hit, my 2007 Alfa's Generac 7.5kw diesel generator shuts down exactly 2 minutes after firing up the basement AC.

Just did a full service (oil, filters, the works) so it's not basic maintenance stuff. I can restart it right after it shuts off, but if the AC is still calling for power, it dies immediately again. No error codes or blinking lights to give me a clue.

Is this a fuel delivery issue where it can't keep up with the AC load? Or am I looking at something else entirely? Really hoping someone's dealt with this exact same 2-minute thing before! …more

Every Saturday I'm planning to tackle my Ford E450 V10's air filter after months of dusty backroad camping — what maintenance schedule should I actually follow? The owner's manual suggests changing the air filter every 30,000 miles, but that seems like a really long interval to me.

I do a fair amount of camping on dusty dirt roads - probably covering about 8-16 miles per month on these conditions to reach remote campsites. I'm worried that all that dust might mean I need to change the filter more frequently than what Ford recommends.

Should I be following a different maintenance schedule given these dusty conditions? And is there anything I should be doing between filter changes to keep things running smoothly? I want to make sure I'm taking proper care of this engine but don't want to over-maintain either. …more

Staring at my 2007 Norcold N611's flashing NO CO lights shutting everything down — is there a DIY fix under $50 since I can't swing a $300 service call? The fridge loses cooling and then locks out completely. I can reset it and it works for a few days or weeks, then the same cycle repeats.

What exactly does the NO CO error code mean and what causes it? Need to understand what's happening before I start throwing more parts at this problem. …more

Around 6 AM I walked out to my fifth wheel and spotted my Advent air conditioner running but barely pushing any cool air through the vents. I replaced my old Coleman AC with an Advent, mainly due to price, but I'm not getting good cooling during the heat of the day. I've found that opening the slide vents on the ceiling cover helps a bit.

I'm considering using a KoolRV adapter like I had with my previous Coleman, but no adapter currently exists for the Advent. I've noticed the cold air discharge opening is located in the corner instead of the center, which I think is causing air turbulence and restricting duct airflow.

My main concern is whether restricting the airflow too much could cause problems like freezing up or other damage to the AC system. I've also seen that installing these adapters involves removing some kind of dividing wall inside the unit, but I don't understand why that's necessary.

Could someone explain if there are risks to restricting airflow and why that dividing wall needs to be removed? I want to make sure I understand what I'm getting into before I try any modifications. Right now, it's starting to cool down here in the Everglades, but I still want to improve my cooling performance. Thanks for any guidance! …more

Staring at my 2022 Thor Quantum SE28 furnace after following three YouTube tutorials that somehow made it worse — now it won't ignite despite the blower running perfectly. The unit is getting power and the blower motor kicks on when I call for heat, but I'm not getting any ignition at all - no flame, no heat output. I can hear the blower running strong, so it's definitely getting electrical power, but something in the ignition sequence isn't working.

I've got plenty of propane (3/4 tank) and my stove works fine, so I know gas is flowing to the RV. This is actually the first time I've tried to fire up the furnace this season after it sat unused all summer. The outside vents look clean and I don't see any obvious obstructions, but I'm wondering if there are specific components in the ignition system I should be checking.

What are the most common failure points when you have blower operation but no ignition? I'd like to work through the troubleshooting systematically rather than just throwing parts at it. Are there particular components like switches or igniters that typically cause this symptom? …more

Standing here after replacing my RV's AC compressor yesterday but it's still barely blowing cold air — did I mess something up? My dual AC setup absolutely crushes it when it's blazing hot outside - we're talking 95+ degree days and it'll knock the temp down a solid 15 degrees no problem. But now that the weather's cooled off to like 70-75 degrees, the darn things can't even keep up with the outdoor temperature. Set the thermostat to 69, outside temp is 69, and I'm still sitting at 75+ inside the rig.

I actually tested it yesterday - turned off the AC completely, opened windows and ran exhaust fans, and got better cooling than with the AC running! Now I'm doing this weird combo of AC plus open windows just to stay comfortable. What gives? Why would my AC units lose their mojo when the weather gets easier on them? Is this some kind of airflow issue or what? …more

Planning to fix my Class A motorhome's transmission myself, but my neighbor says it needs fluid, the dealer insists it's the torque converter, and YouTube swears it's the solenoid pack. On my 4R100 transmission specifically, the transmission has been shifting a little rough lately, especially when accelerating from a stop or when climbing hills. Sometimes it seems to hesitate before shifting into the next gear, and I've noticed the engine RPMs climbing higher than usual before it finally engages.

I've owned this RV for about three years now, and I'll admit I haven't been as diligent about transmission maintenance as I probably should have been. The fluid looked a bit dark the last time I checked it, but I'm not entirely sure what I should be looking for or what the proper procedure is for checking transmission health. I've heard horror stories about transmission rebuilds costing thousands of dollars, so I want to make sure I'm approaching this systematically rather than just hoping the problem goes away.

What's the proper first step when you suspect transmission problems? Should I be taking it straight to a shop, or are there some basic diagnostic steps I can handle myself before spending money on professional diagnosis? I want to make sure I'm not missing something simple that could save me a lot of headache and expense down the road. …more

Called three different YouTube tutorials claiming to boost my 2000 Ford E450 V10's uphill towing power, but now my motorhome struggles even worse in the mountains. The unit struggles substantially on extended uphill grades, particularly during Rocky Mountain travel where sustained climbs can last 30+ minutes.

I'm evaluating several modification options to address this performance deficiency: rear differential gear ratio changes, SCT programming modules, K&N high-flow air filtration systems, and catalytic converter removal. I need to understand which modifications will provide measurable uphill towing improvements versus those that offer minimal gains.

What is the relative effectiveness of these power modifications for V10 mountain towing applications? I'm looking for a technical assessment of which upgrades deliver the most significant performance improvements for this specific application. …more

About to dive into the dashboard of my 2001 Rexhall Roseair Mod 3655HLDS built on a Ford V10 chassis — would this blend door actuator repair be covered under any extended warranty? The cab air conditioning system seems to be working - the compressor kicks on, the system is properly charged with refrigerant, and I can hear the blower fan running and changing speeds when I adjust the controls. However, even on the maximum fan setting, there's barely any airflow coming out of the vents.

I've researched potential causes specific to this model: Does this Rexhall have a cabin filter? Where is it located? I've heard about potential issues with directional flow doors blocking airflow - how can I access and check these? Other potential causes include clogged intake air, blocked fan wheel, or a plugged evaporator coil. Where are these components located, and how can I inspect or clean them? I have evacuation equipment, vacuum pump, and gauges ready to help diagnose the problem.

What's the most common cause of weak airflow on this specific Ford V10 chassis motorhome when everything else seems to be functioning? …more

This 1998 Holiday Rambler's Atwood 8535-III is dying and I can't swing a $300+ service call — any DIY replacement options under $200? It's been repaired multiple times over the years, but now it's getting rusty and parts are nearly impossible to find. I'm worried about safety issues if I keep trying to patch it up.

I really need to replace it with something reliable, but I'm nervous about compatibility issues. Will a newer furnace even fit in the same space? Are there any direct replacement options that won't require major modifications to my RV's heating system?

I'd feel much better having a proper replacement recommendation rather than guessing and potentially creating bigger problems. What are my best options for replacing this old Atwood 8535-III? …more